Definition of sprocket
1 : a toothed wheel whose teeth engage the links of a chain
2 : a cylinder with teeth around the circumference at either end that project through perforations in something (such as motion-picture film) to move it through a mechanism (such as a projector)
Recent Examples of sprocket from the Web
MST-HS has become its own showcase of innovation, created with students like Hope in mind, students who might not flourish in a traditional high school but enjoy learning math and other skills with the help of sprockets and spokes.
The new, full-time active transfer case uses forged steel chain sprockets and a wider chain for added strength and durability.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sprocket.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of sprocket
First Known Use: 1886See Words from the same year
SPROCKET Defined for English Language Learners
Definition of sprocket for English Language Learners
: a wheel that has a row of teeth around its edge which fit into the holes of something (such as a bicycle chain or a piece of film) and cause it to turn when the wheel turns; also : any one of the teeth on such a wheel
SPROCKET Defined for Kids
Definition of sprocket for Students
: one of many points that stick up on the rim of a wheel (sprocket wheel) shaped so as to fit into the links of a chain
Seen and Heard
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